Ao Nang weather in December

In December, Ao Nang sees average daytime highs of 29°C and overnight lows near 25°C, with 83 mm of rain across 11.8 wet days and about 11.5 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 18% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of December to 11 h 30 min by month's end. Set against the rest of the year, December is Ao Nang's 5th-clearest and 5th-windiest month. For the whole year in context, see Ao Nang's year-round climate.

Daytime high
29°
7th warmest
Overnight low
25°
2nd coldest
Rainfall
83 mm
11.8 wet days
Daylight
11 h 30 min
6:35 AM – 6:07 PM
Cloud cover
71%
5th clearest
Wind
14 km/h
5th windiest
Solar energy
4.68 kWh/m²
Travel score
5.3
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Ao Nang reaches about 29°C in the afternoon and slips back to 25°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, December runs on par with November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12926
22926
32926
42926
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312925

How December really feels in Ao Nang

Once humidity and wind are folded in, December averages 7 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
7
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ao Nang weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 25°436.511.65.8
Feb30° / 26°214.411.75.8
Mar30° / 27°7010.411.95.1
Apr30° / 27°12718.412.24.1
May29° / 27°24924.912.43.4
Jun29° / 27°25022.712.53.6
Jul29° / 27°23423.212.43.8
Aug28° / 26°25623.912.33.8
Sep28° / 26°28324.5123.7
Oct28° / 26°27827.611.83.5
Nov28° / 26°17521.511.64.0
Dec29° / 25°8311.811.55.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 67%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22872
32971
43169
53169
63070
73169
83268
93268
103367
113367
123466
133466
143466
153466
163466
173466
183466
193466
203466
213466
223565
233565
243565
253664
263565
273565
283763
293664
303664
313763

Chance of precipitation in December

Any precipitation

Ao Nang gets around 83 mm of rain over 11.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 57% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
157
255
353
452
550
649
747
846
944
1043
1142
1240
1339
1438
1537
1636
1735
1834
1933
2032
2132
2231
2330
2430
2529
2629
2728
2828
2927
3027
3127

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the oppressive band about 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1027820
2027919
3028018
4028117
5028216
6028315
7028414
8028513
9028612
10028711
11038710
12038710
1303889
1403898
1504888
1604897
1705887
1805896
1906886
2006895
2117875
2217875
2318874
2419864
2519864
26110854
27110863
28111853
29111853
30111853
31111853

Wind in December

Winds average 14 km/h in December.

Across December, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 36 min at the start of December to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:28 AM to 6:42 AM, and sunset from 6:01 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:286:01
211.66:286:02
311.66:296:02
411.66:296:02
511.66:296:03
611.66:306:03
711.56:306:03
811.56:316:04
911.56:316:04
1011.56:326:04
1111.56:326:05
1211.56:336:05
1311.56:336:06
1411.56:346:06
1511.56:346:07
1611.56:356:07
1711.56:356:07
1811.56:366:08
1911.56:366:08
2011.56:376:09
2111.56:376:09
2211.56:386:10
2311.56:386:10
2411.56:396:11
2511.56:396:11
2611.56:406:12
2711.56:406:12
2811.56:416:13
2911.56:416:13
3011.56:416:14
3111.56:426:14

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.68 kWh/m².

For context, solar energy here swings from a low near 4.45 kWh/m² to a high of 6.2 kWh/m² in March across the year — December's 4.68 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Ao Nang

In seasonPeak

In December, Ao Nang sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Ao Nang sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Ao Nang's rainy season runs May–November, when most of the year's rain falls.

Cyclone
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Ao Nang?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.3
Sightseeing
3rd-best month of the year
6.5
Beach & pool
4th-best month of the year

December is a reasonable time to visit Ao Nang for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Ao Nang in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Ao Nang sees daytime highs around 29°C and nights near 25°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Ao Nang in December

The nearest coast averages about 29°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 km away) is warmest in May at about 30°C and coldest in January near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Ao Nang in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ao Nang peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 10 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeApr 11UV 13Nov 23UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Extreme

Air quality in Ao Nang in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Ao Nang is worst in April — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1120 µg/m³Aug 1813 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb17Moderate
Mar19Moderate
Apr20Moderate
May16Moderate
Jun15Moderate
Jul16Moderate
Aug13Moderate
Sep15Moderate
Oct15Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Ao Nang?

Ao Nang sits at 8.0°N, 98.8°E, 0 m above sea level, in Thailand. The nearest listed city is Krabi, 11 km away.

Topography around Ao Nang

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ao Nang.

Within 3 km, the terrain around Ao Nang has significant variations in elevation — a maximum elevation change of 320 m around an average of 33 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 514 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,369 m.

The land around Ao Nang is covered by trees (46%) and water (35%) within 3 km, water (58%) and trees (31%) within 16 km, and trees (51%) and water (44%) within 80 km.

3 km
320 m
16 km
514 m
80 km
1,369 m
treesgrasslandartificial surfaceswatermangroves
December weather nearby: Krabi 11 km · Ko Phi Phi 34 km · Ban Ko Sire 46 km · Ban Ratsada 47 km · Phuket 49 km · Ban Talat Yai 49 km · Wichit 50 km · Ban Talat Nua 50 km

Thailand travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$8,057
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
4.8
per 100k, 2011
Road deaths
32.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 402
Religion
Buddhist 93%Muslim 5%Christian 1%other 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ao Nang (8.0458°, 98.8103°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).